1 files changed, 27 insertions, 0 deletions
diff --git a/libquadmath/math/isnanq.c b/libquadmath/math/isnanq.c
new file mode 100644
index 000000000..ab9df1658
--- /dev/null
+++ b/libquadmath/math/isnanq.c
@@ -0,0 +1,27 @@
+/* s_isnanl.c -- long double version of s_isnan.c.
+ * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#include "quadmath-imp.h"
+
+int
+isnanq (const __float128 x)
+{
+  int64_t hx,lx;
+  GET_FLT128_WORDS64(hx,lx,x);
+  hx &= 0x7fffffffffffffffLL;
+  hx |= (uint64_t)(lx|(-lx))>>63;
+  hx = 0x7fff000000000000LL - hx;
+  return (int)((uint64_t)hx>>63);
+}